| 초록 |
This study had been conducted to investigate the effect of some plant growth regulators inducing fruit enlargement and optimal harvest time in Sageretia thea. Two hundred fifty $mg/{ ell}$ mepiquat chloride treatment, $1mg/{ ell}$ thidiazuron treatment on full bloom, and $200mg/{ ell}$ gibberellic acid treatment on 7 days before full bloom resulted in the increase of 21.7% in weight, and $200mg/{ ell}$ gibberellic acid treatment 7 days before full bloom, 10 $mg/{ ell}$ forchlorfenuron treatment 14 days after full bloom, and $1mg/{ ell}$ thidiazuron treatment on full bloom also brought about positive effects on the enlargement of the fruit, increasing 6.3%, 6.3% and 8.1% in its transverse diameter, respectively. Furthermore, the effects of the plant growth regulator treatments on the harvest time of Sageretia thea were determined as follows: the increase in the optimal harvest time of 57.2 - 75.4%, shorter maturation period, by the treatments with $500mg/{ ell}$ mepiquat chloride 7 days after full bloom, $100mg/{ ell}$ gibberellic acid treatment on full bloom, $2.5mg/{ ell}$ forchlorofenuron 7 days after full bloom and $2mg/{ ell}$ thidiazuron treatment 7 days before full bloom; and the greater effects of plant growth regulator treatments on the fruit maturation in the following order, gibberellic acid gt; thidiazuron gt; forchlorofenuron gt; mepiquat chloride. The results of this study are expected to be used as a reference data to develop Sageretia thea as a new local specific crop for Jeju island. |
